Observation of Clocks

A clock is an instrument used to keep time. The word "clock" is derived from the Celtic word meaning "bell." A silent instrument has traditionally been known as a timepiece. 

Today, a clock refers to any device used for measuring and displaying the time. The clock is one of the oldest human inventions used to measure intervals of time shorter than the day, the month, or the year. Devices operating in several different ways have been used over the millennia, which have evolved into modern clocks.

In this lesson, you will illustrate and write an observation of different devices used to tell time. You will record your observations of different clocks on this lesson's worksheet.